[internetworkers] CATV signals

Steven Champeon schampeo at hesketh.com
Tue Dec 20 11:18:32 EST 2005


on Tue, Dec 20, 2005 at 11:06:41AM -0500, Mark Turner wrote:
> Lyman Green wrote:
> > wow that blog post reference is fascinating.  And VERY detailed.
> > 
> > I think that what it means is most houses are radically
> > under-protected from lightning.
> 
> Fortunately, direct lightning strikes on homes are rare. That webpage is 
> written for ham radio operators with big-ass antenna towers that need 
> lightning protection. As you can imagine, big-ass towers (BATs) make 
> excellent lightning rods. :)

Not so rare that you can ignore them, though. When I was a kid, my Dad
had a 100ft. CB antenna mounted on the house; the grounding wire snaked
past my bedroom window. We had a direct strike, and it blew out the old
B&W TV I had plugged into the outlet near the grounding wire. The CRT
glowed for about ten minutes. It was impressive :) I've lost several
modems (three dialup and one cable) from lightning over the past ten
years, all from direct or near-direct strikes - and I haven't had a BAT
since I was 11 and the guys snapped in high wind and took it down. NC
seems to have a lot more lightning than I remember from Maine...

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